Spinning cellulose acetate flakes, commonly referred to as diacetate flakes, are a raw material specifically used for the production of acetate fibers. It is a white powdery or sheet-like material made from natural wood pulp or cotton pulp through acetylation modification. Its core characteristics include spinnability, high specific surface area, excellent filtration performance, good thermoplasticity, and environmentally friendly degradability.

1. Excellent spinnability:

This is its most important characteristic. It can dissolve in specific solvents (most commonly acetone) to form a spinning solution with moderate viscosity and good stability, thus smoothly producing continuous long or short fibers through the spinning process.

2. High purity and consistency:

The vinegar flakes used for spinning have extremely high purity requirements, and the impurity content (such as sulfate, ash, etc.) must be strictly controlled to ensure smooth spinning process and the final fiber color purity.

3. Good solubility:

The ability to quickly and uniformly dissolve in acetone to form a uniform and transparent solution is the foundation of dry spinning technology.

4. A certain degree of polymerization and acetyl content:

These chemical indicators are precisely controlled, directly affecting the rheological properties of the spinning solution, the strength, gloss, and thermoplastic properties of the fibers.

Application field

1. Tobacco industry:

More than 90% of the world's cellulose acetate fiber bundles are used for cigarette filter rod manufacturing, effectively reducing the harmful substance content inhaled by smokers. Its Y-shaped cross-sectional structure and high specific surface area significantly improve the adsorption efficiency of the filter while maintaining breathability.

2. Textile field:

Used for making suit linings, sportswear, summer lightweight clothing, etc., it has breathability, moisture absorption, and anti-static properties.

The fabric has a soft and smooth feel, with a soft luster, and is favored by high-end brands.